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Basic zinc borate nonlinear optical crystal and its preparation method and application

A technology of nonlinear optics and zinc borate, applied in the fields of nonlinear optics, chemical instruments and methods, optics, etc., can solve the problems that crystals cannot be purchased in the market, are expensive, and have not yet been seen.

Active Publication Date: 2021-09-10
XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the single crystal growth technology of these materials has become increasingly mature, there are still obvious deficiencies: such as deliquescence of the crystal, long growth cycle, serious layered growth habit and expensive price, etc.
[0004] Although the compound Zn 2 BO 4 H was reported in 1992 and 2003 (such as Chinese Patent Nos.92113403.7; Zhen-Tao Yu etc., J. Mater. Chem. 2003, 13, 2227-2233, etc.), but these reports did not involve Zn 2 BO 4 Measurement and Research of Linear Optical and Nonlinear Optical Properties of H Single Crystal and Its Application in Nonlinear Optics
To test the basic physical properties (including nonlinear optical properties) of a crystal, it is necessary to grow its single crystal. So far, there has been no relevant preparation of Zn crystals with a size sufficient for physical property testing. 2 BO 4 There is no report on the H single crystal, and the crystal cannot be purchased in the market, and there is no report on the Zn single crystal. 2 BO 4 The report of the test results of the nonlinear optical properties of H single crystal or the Zn 2 BO 4 A report on the application of H single crystal in the fabrication of nonlinear optical devices

Method used

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  • Basic zinc borate nonlinear optical crystal and its preparation method and application
  • Basic zinc borate nonlinear optical crystal and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] According to the chemical reaction formula 2ZnO+H 3 BO 3 →Zn 2 BO 4 H+H 2 O preparation of basic zinc borate nonlinear optical crystal:

[0031] a. Weigh 2:1 ZnO and H according to molar ratio 3 BO 3 powder as raw material, and then weigh the H 3 BO 3 and 1:1 KF as a mineralizer, mix and grind evenly, add it into a Teflon semi-permeable membrane bag, seal the semi-permeable membrane bag with a sealing machine, and put the sealed bag into a polytetrafluoroethylene teflon in a hydrothermal kettle with a volume of 100mL. Add 5mL of deionized water to the ethylene liner, and tighten the cap of the PTFE liner;

[0032] b. Put the polytetrafluoroethylene liner in step a into a corresponding clean and pollution-free hydrothermal kettle, and tighten the lid of the kettle;

[0033] c. Place the hydrothermal kettle in step b in an incubator, raise the temperature to 170°C at a rate of 10°C / hour, keep the temperature constant for 3 days, and then lower it to room temperat...

Embodiment 2

[0036] According to the chemical reaction formula 2ZnO+H 3 BO 3 →Zn 2 BO 4 H+H 2 O preparation of basic zinc borate nonlinear optical crystal:

[0037] a. Weigh 2:1 ZnO and H according to molar ratio 3 BO 3 powder as the raw material, and then weigh the B with a ratio of 1:5 to the raw material 2 o 3 and 1:3 KCl as a mineralizer, mixed and ground evenly, added to a Teflon semi-permeable membrane bag, sealed the semi-permeable membrane bag with a sealing machine, and put the sealed bag into a polytetrafluoroethylene teflon in a hydrothermal kettle with a volume of 100mL. Add 20mL of deionized water to the ethylene liner, and tighten the PTFE liner cap;

[0038] b. Put the polytetrafluoroethylene liner in step a into a corresponding clean and pollution-free hydrothermal kettle, and tighten the lid of the kettle;

[0039] c. Place the hydrothermal kettle in step b in an incubator, raise the temperature to 200°C at a rate of 30°C / hour, keep the temperature constant for 7 ...

Embodiment 3

[0042] According to the chemical reaction formula 2ZnO+H 3 BO 3 →Zn 2 BO 4 H+H 2 O preparation of basic zinc borate nonlinear optical crystal:

[0043] a. Weigh 2:1 ZnO and H according to molar ratio 3 BO 3 powder as raw material, and then weigh the H 3 BO 3 and KI of 1:6 as a mineralizer, mixed and ground evenly, added to the Teflon semi-permeable membrane bag, sealed the semi-permeable membrane bag with a sealing machine, and put the sealed bag into the polytetrafluoroethylene teflon in a hydrothermal kettle with a volume of 100mL. Add 50mL of deionized water to the ethylene liner, and tighten the PTFE liner cap;

[0044] b. Put the polytetrafluoroethylene liner in step a into a corresponding clean and pollution-free hydrothermal kettle, and tighten the lid of the kettle;

[0045] c. Place the hydrothermal kettle in step b in an incubator, raise the temperature to 220°C at a rate of 60°C / hour, keep the temperature constant for 7 days, and then lower it to room tempe...

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Abstract

The invention relates to a non-linear optical crystal of basic zinc borate and its preparation method and application. The molecular formula of the crystal is: Zn 2 BO 4 H, the molecular weight is 206.56, belongs to the monoclinic crystal system, and the space group is P 2 1 , the unit cell parameter is a =5.730(7)Å, b =4.952(4)Å, c =6.881(6)Å,β=99.09(5)°, Z =2, the UV absorption cut-off edge in the light-transmitting band is at 220 nm, and the basic zinc borate nonlinear optical crystal is prepared by the enveloped hydrothermal method. Basic zinc borate nonlinear optical crystals are used to prepare nonlinear optical devices, including frequency doubling generators, up or down frequency converters and optical parametric oscillators. The nonlinear device made of basic zinc borate nonlinear optical crystal includes at least one beam of incident fundamental wave light to generate at least one beam of coherent light with a frequency different from that of the incident light.

Description

technical field [0001] The present invention relates to the chemical formula Zn 2 BO 4 The basic zinc borate nonlinear optical crystal of H, a preparation method and an optical device made by using the single crystal. Background technique [0002] Laser is a coherent monochromatic light source with good directionality and high intensity, which is widely used in various fields of military, industry, medical treatment and scientific research. Due to the limitations of the active ions in the laser crystal, the laser wavelengths output by solid-state lasers are mostly concentrated in the visible and near-infrared regions. Therefore, the use of nonlinear optical crystals for frequency conversion to obtain various laser sources with wide tuning has become a frontier topic in the development of laser technology. In modern laser technology, strong tunable coherent light output can be produced by using the frequency doubling effect, frequency mixing effect, tunable optical paramet...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B7/10C30B29/10G02F1/35G02F1/355G02F1/37G02F1/39
CPCC30B7/10C30B29/10G02F1/353G02F1/3551G02F1/37G02F1/39
Inventor 潘世烈王雪飞张方方
Owner XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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